Welcome to the Rogers Community Forums and thank you for your post. I do apologize to hear that you are having issues with one of our apps. Can you let us know some more information on which app you are using and describe a bit more on what is happening when you use it?
Most app issues can be resolved by having the most up to date version installed. Can you try uninstalling the app and reinstalling it back and check the app store to ensure you are updated to the latest version. Let us know if that helps.
Looking forward to your reply!